Invariant mass distribution for selected $\psi(2S)K^+ \pi^-$ candidates in
the data. A fit to the model described in the text is superimposed. The
full fit model is shown by the solid (red) line, the combinatorial
background by the solid (yellow) and the sum of background from the
exclusive $b \rightarrow \psi(2S)X$ modes considered in the text by the shaded (blue) area.
The maximum of
the $y$-scale is restricted so as to be able to see more clearly the
$\overline{ B }{} {}^0_ s \rightarrow \psi(2S)K^+ \pi^-$ signal. The lower plot shows the differences between the fit and measured
values divided by the corresponding uncertainty of the measured value,
the so-called pull distribution.

Tables and captions

Summary of systematic uncertainties on the $K^*(892)^0$ fit fraction and $f_{\rm L}$.
Rows marked with (*) refer to uncorrelated sources of uncertainty between the $ B ^0_ s $ and $ B ^0 $ modes
for the computation of the ratio of branching fractions.